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<div class="section" title="Portability">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="range.portability"></a><a class="link" href="portability.html" title="Portability">Portability</a>
</h2></div></div></div>
<p>
      A huge effort has been made to port the library to as many compilers as possible.
    </p>
<p>
      Full support for built-in arrays require that the compiler supports class template
      partial specialization. For non-conforming compilers there might be a chance
      that it works anyway thanks to workarounds in the type traits library. Visual
      C++ 6/7.0 has a limited support for arrays: as long as the arrays are of built-in
      type it should work.
    </p>
<p>
      Notice also that some compilers cannot do function template ordering properly.
      In that case one must rely of <a class="link" href="reference/concept_implementation/semantics/metafunctions.html" title="Metafunctions"><code class="computeroutput"><span class="identifier">range_iterator</span></code></a> and a single function
      definition instead of overloaded versions for const and non-const arguments.
      So if one cares about old compilers, one should not pass rvalues to the functions.
    </p>
<p>
      For maximum portability you should follow these guidelines:
    </p>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
        do not use built-in arrays,
      </li>
<li class="listitem">
        do not pass rvalues to <a class="link" href="reference/concept_implementation/semantics/functions.html" title="Functions"><code class="computeroutput"><span class="identifier">begin</span></code></a><code class="computeroutput"><span class="special">()</span></code>,
        <a class="link" href="reference/concept_implementation/semantics/functions.html" title="Functions"><code class="computeroutput"><span class="identifier">end</span></code></a><code class="computeroutput"><span class="special">()</span></code>
        and <a class="link" href="reference/utilities/iterator_range.html" title="Class iterator_range"><code class="computeroutput"><span class="identifier">iterator_range</span></code></a> Range constructors
        and assignment operators,
      </li>
<li class="listitem">
        use <a class="link" href="reference/concept_implementation/semantics/functions.html" title="Functions"><code class="computeroutput"><span class="identifier">const_begin</span></code></a><code class="computeroutput"><span class="special">()</span></code>
        and <a class="link" href="reference/concept_implementation/semantics/functions.html" title="Functions"><code class="computeroutput"><span class="identifier">const_end</span></code></a><code class="computeroutput"><span class="special">()</span></code>
        whenever your code by intention is read-only; this will also solve most rvalue
        problems,
      </li>
<li class="listitem">
        do not rely on ADL:
        <div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
            if you overload functions, include that header before the headers in
            this library,
          </li>
<li class="listitem">
            put all overloads in namespace boost.
          </li>
</ul></div>
</li>
</ol></div>
</div>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2003 -2010 Thorsten Ottosen, Neil Groves<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
      </p>
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